EFFECT OF ROTENONE ON ACTIVITY OF SOME ENZYMES AND THEIR RECOVERY IN FRESH-WATER CARP FINGERLINGS OF LABEO-ROHITA

Effect of a sublethal concentration (0.1 ppm) of rotenone (C23H22O6) o n the activities of alkaline phosphatase (ALP), acid phosphatase (ACP) , alanine and aspartate aminotransferase (ALT & AST) of liver and gill s of the fingerlings of Labeo rohita for the period 3, 7 and 14 days a nd their subsequent recovery following withdrawals of fish from exposu re to rotenone for 7 days were studied. Significant elevation of the e nzyme activities of the liver and gill tissues was observed with incre asing period of exposure. During recovery period, enzyme activity in l iver showed a significant increase but in gill tissue a decline was ob served.